code: def test_open_osfhandle(self):
      h = _winapi.CreateFile(
          TESTFN_ASCII, _winapi.GENERIC_WRITE, 0, 0, 1, 128, 0
      )
      self.addCleanup(os_helper.unlink, TESTFN_ASCII)
  
      try:
          fd = msvcrt.open_osfhandle(h, os.O_RDONLY)
          h = None
          os.close(fd)
      finally:
          if h:
              _winapi.CloseHandle(h)
  
imports: import os
  import subprocess
  import sys
  import unittest
  from textwrap import dedent
  from test.support import os_helper, requires_resource
  from test.support.os_helper import TESTFN, TESTFN_ASCII
  import _winapi
  import msvcrt
label_desc: Use image node_id 4 for calling the TestFileOperations obj's underlying member method code with example usage: obj.test_open_osfhandle() without return types